HSE Risk Assessment and Management Questions and Answers

Question 1

A construction company is performing a risk assessment for a new high-rise building project.
The safety team uses a risk matrix to evaluate identified hazards.
One specific hazard, 'working at height', is assigned a high probability of occurrence and a catastrophic severity.
In a standard risk matrix, what is the MOST appropriate next step?

Accepted Answer

Implement control measures to reduce the risk to a level that is 'As Low As Reasonably Practicable' (ALARP).

Answer

Develop a detailed safe work procedure and provide personal protective equipment (PPE).

Answer

Immediately cease all work at height and redesign the project to avoid it entirely.

Answer

Accept the risk as inherent to construction and increase insurance coverage.

Question 2

An HSE professional is conducting a Job Safety Analysis (JSA) for the task of changing a large industrial gearbox. After observing the task and listing the sequential steps, what is the immediate next phase of the JSA process?

Accepted Answer

Identify potential hazards associated with each step.

Answer

Develop and implement new control measures.

Answer

Assign responsibility for implementing the JSA.

Answer

Calculate the risk score for the overall task.

Question 3

Which of the following best describes a key difference between qualitative and quantitative risk assessment?

Accepted Answer

Qualitative assessment uses descriptive scales like 'high, medium, low', while quantitative assessment uses numerical probabilities and impacts.

Answer

Qualitative assessment uses numerical data and statistical analysis, while quantitative assessment relies on expert judgment.

Answer

Qualitative assessment is more time-consuming and expensive, while quantitative assessment is rapid and low-cost.

Answer

Qualitative assessment assigns specific financial values to risks, while quantitative assessment uses descriptive categories.

Question 4

A chemical processing plant uses a Bowtie Analysis to evaluate the risks associated with a 'loss of containment' event for a hazardous substance. The left side of the bowtie diagram would typically illustrate which of the following?

Accepted Answer

Potential threats that could cause the loss of containment and the preventive controls in place.

Answer

Emergency response procedures and spill cleanup measures.

Answer

The consequences of the release, such as environmental damage and worker exposure.

Answer

The recovery measures designed to return the plant to normal operation.

Question 5

A safety manager is using a 5x5 risk matrix to assess a hazard. The likelihood is rated as 'Occasional' (3) and the severity of potential harm is rated as 'Critical' (4). What is the resulting risk score and its likely classification?

Accepted Answer

Risk Score: 12, Classification: High

Answer

Risk Score: 7, Classification: Medium

Answer

Risk Score: 3, Classification: Low

Answer

Risk Score: 4, Classification: Medium

Question 6

During a risk assessment workshop for a manufacturing process, the team decides that the cost, time, and effort required to implement an advanced engineering control to eliminate a minor residual risk would be grossly disproportionate to the safety benefit gained. This decision is a direct application of which risk management principle?

Accepted Answer

As Low As Reasonably Practicable (ALARP)

Answer

Zero Risk Tolerance

Answer

Management of Change (MOC)

Answer

Hierarchy of Controls